<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div{
            font-size: 40px;
            color: rgb(13, 121, 243);
            text-align: center;
            margin-top: 100px;
            font-weight: 900;
            }
    </style>
</head>
<body>
    <div>不许不开心了，做点事情，玩也可以</div>
    <script>
        while(1){
            let str = prompt("你想运动吗");
            if(str == "想"||str == "想运动"){
                alert("你真棒！");
                break;
            }
        }
    </script>
</body>
</html>